From: "amado.alves" <amado.alves@netcabo.pt>
To: <comp.lang.ada@ada-france.org>
Subject: RE: Proposed change to BC iterator parameters
Date: Thu, 11 Dec 2003 12:43:41 -0000
Date: 2003-12-11T12:43:41+00:00 [thread overview]
Message-ID: <mailman.82.1071146630.31149.comp.lang.ada@ada-france.org> (raw)
<<...
> with premature termination of the iteration done by raising inside
> Apply an exception which Visit_With_In_Param propagates by
> definition.
Yeah, that works. It's not very efficient...>>
In GNAT it is no less efficient than the boolean parameter approach. I've checked experimentally. Is it a *real* problem in other implementations?
<<...Ada really doesn't have very good support for iterators.>>
I see some weaknesses in Ada, but not this one.
<<...
(Goto haters should consider that exceptions are just like gotos, except
you don't know statically where they're going to -- i.e., exceptions are
*worse* than gotos, from a structured programming point of view.)>>
There are two opposing schools of though regarding the use of exceptions for control flow. Obviously I belong to the one that says it's OK.
<<I don't understand the point of Param_Type and Param above. If you want
to pass extra information to Apply, nest the instantiation in a place
where it can see that data.>>
Exactly, cf. example in my previous message.
next reply other threads:[~2003-12-11 12:43 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-11 12:43 amado.alves [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-12-23 10:40 Proposed change to BC iterator parameters amado.alves
2003-12-19 15:53 amado.alves
2003-12-19 23:05 ` Robert A Duff
2003-12-11 16:02 amado.alves
2003-12-11 15:05 ada_wizard
2003-12-11 16:45 ` Robert A Duff
2003-12-11 12:56 amado.alves
2003-12-17 20:25 ` Robert A Duff
2003-12-11 12:33 amado.alves
2003-12-10 14:39 amado.alves
2003-12-10 13:36 amado.alves
2003-12-10 17:39 ` Martin Krischik
2003-12-10 18:22 ` Jeffrey Carter
2003-12-10 23:00 ` Robert A Duff
2003-12-11 1:00 ` Jeffrey Carter
2003-12-11 15:09 ` Robert A Duff
2003-12-11 8:33 ` Dmitry A. Kazakov
2003-12-10 20:50 ` Simon Wright
2003-12-10 23:12 ` Robert A Duff
2003-12-11 5:07 ` Steve
2003-12-11 15:24 ` Robert A Duff
2003-12-11 17:39 ` Jeffrey Carter
2003-12-12 22:22 ` Robert A Duff
2003-12-13 0:57 ` Jeffrey Carter
2003-12-17 20:59 ` Robert A Duff
2003-12-18 10:05 ` Dmitry A. Kazakov
2003-12-18 18:14 ` Robert A Duff
2003-12-19 10:53 ` Dmitry A. Kazakov
2003-12-19 16:17 ` Georg Bauhaus
2003-12-19 17:19 ` Dmitry A. Kazakov
2003-12-19 22:51 ` Robert A Duff
2003-12-20 12:20 ` Dmitry A. Kazakov
2003-12-19 22:47 ` Robert A Duff
2003-12-20 2:11 ` Stephen Leake
2003-12-20 19:08 ` Robert I. Eachus
2003-12-21 11:39 ` Simon Wright
2003-12-21 18:13 ` Robert I. Eachus
2003-12-21 13:58 ` Dmitry A. Kazakov
2003-12-22 1:25 ` Robert I. Eachus
[not found] ` <916oa1-c93.ln1@beastie.ix.netcom.com>
2003-12-13 16:57 ` Simon Wright
2003-12-12 5:29 ` Simon Wright
2003-12-12 22:26 ` Robert A Duff
2003-12-13 16:55 ` Simon Wright
2003-12-13 17:27 ` Dmitry A. Kazakov
2003-12-13 2:44 ` Steve
2003-12-10 5:46 Simon Wright
2003-12-10 18:12 ` Jeffrey Carter
2003-12-11 16:10 ` Martin Krischik
2003-12-10 20:59 ` Simon Wright
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